Notice:App Backup Restore - Transfer CANNOT backup, restore, transfer data or settings of apps, it only backup, restore, transfer apk files.App Backup Restore - Transfer can only restore files that have been backed up BEFORE.Please backup to sd card or cloud before factory reset, or all backups will be deleted due to system restriction.For Android 4.4 and above, Google reserved the permission to write in SD card. It is now granted only to Google and cellphone manufactures.